#### Answer

$\frac{16}{25}$

#### Work Step by Step

Rewrite a decimal as an equivalent fraction by using the decimal as the numerator and 100 as the denominator. Reduce by dividing both numerator and denominator by the greatest common factor.
$64$% $=\frac{64}{100}=\frac{64\div4}{100\div4}=\frac{16}{25}$